<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        #t1 {
            background-color: pink;
        }

        .t2 {
            color: green;
        }

        body ul, a {
            background-color: deepskyblue;
        }

        a:link {
            color: green;
        }

        a:visited {
            color: blue;
        }

        a:hover {
            color: red;
        }

        a:active {
            color: yellow;
        }

        input[type='text'] {
            color: red
        }

        input[type='password'] {
            background-color: green;
        }

        body div div {
            color: green;
        }

        body > div > div > p {
            background-color: red;
        }
    </style>
</head>
<body>
<div id="t1">刘备</div>
<div>关羽</div>
<div class="t2">张飞</div>
<p>悟空</p>
<p>八戒</p>
<p class="t2">沙僧</p>
<ul>
    <li>水煮鱼</li>
    <li>红烧肉</li>
    <li class="t2">黄焖鸡</li>
</ul>
<input type="text">
<input type="password">
<a href="http://www.tedu.com">达内官网</a>

<div>
    <p>p1</p>
    <div><p>p2</p></div>
    <div><p>p3</p>
        <div><p>p4</p></div>
    </div>
</div>
</body>
</html>